Display panel, manufacturing method thereof, and displaying device

ABSTRACT

Disclosed are a display panel, a manufacturing method thereof, and a displaying device. The display panel comprises a pixel layer, a support layer, a lens unit and a cover plate which are stacked in sequence. The support layer is located on a luminescent layer of the pixel layer. The lens unit comprises a lens layer, wherein the lens layer comprises a lens area and a non-lens area, and the lens area comprises multiple lenses arranged in an array. The display panel further comprises a polarization unit disposed on a light path between the pixel layer and the lens layer and configured to filter out light emitted from the pixel layer to the non-lens area.

CROSS REFERENCE TO RELEVANT APPLICATIONS

The application is a continuation application of U.S. Application No.17/356,391, filed on Jun. 23, 2021, and claims benefit of the filingdate of Chinese Patent Application No. 202011302231.X, entitled “DISPLAYPANEL, MANUFACTURING METHOD THEREOF, AND DISPLAYING DEVICE”, filed withthe China National Intellectual Property Administration on Nov. 19,2020, the disclosure of which is hereby incorporated in its entirety byreference.

TECHNICAL FIELD

The disclosure relates to the technical field of display, in particularto a display panel, a manufacturing method thereof, and a displayingdevice.

BACKGROUND

The development of the industrial technology leads to an ever-higherrequirement for the microminiaturization of optical devices, andmicro-lenses come into being, accordingly. Micro-lenses are lenses withan aperture from the micrometer scale to the millimeter scale, and acertain number of micro-lenses are arrayed regularly according to aspecific rule or irregularly to form a micro-lens array.

Compared with traditional lenses, the micro-lens array has theadvantages of small size, light weight, low power consumption, and thelike, and has optical properties that are not processed by traditionaloptical devices, thus endowing devices with many special functions. Inthe technical field of display, naked-eye 3D display may be realized bymeans of the micro-lens array.

SUMMARY

The embodiments of the disclosure provide a display panel, amanufacturing method thereof, and a displaying device.

The embodiments of the disclosure using the following technicalsolutions:

-   In the first aspect, provides a display panel, the display panel    comprising a pixel layer, a support layer, a lens unit and a cover    plate which are stacked in sequence;-   the support layer is located on a light-emitting side of the pixel    layer;-   the lens unit comprises a lens layer, the lens layer comprises a    lens area and a non-lens area, and the lens area comprises multiple    lenses arranged in an array; and-   the display panel further comprises a polarization unit disposed on    a light path between the pixel layer and the lens layer and    configured to filter out light emitted from the pixel layer to the    non-lens area.

Optionally, the polarization unit comprises a first polarization layerand a second polarization layer, wherein the first polarization layer iscloser to the pixel layer than the second polarization layer, and atransmission axis of the first polarization layer is perpendicular to atransmission axis of the second polarization layer.

Optionally, the first polarization layer is located between the pixellayer and the support layer, and the second polarization layer islocated between the support layer and the lens layer.

Optionally, the first polarization layer and the second polarizationlayer are both located between the support layer and the lens layer.

Optionally, the first polarization layer comprises a first wire gridpolarizer, and the second polarization layer comprises a second wiregrid polarizer;

-   wherein, the first wire grid polarizer comprises multiple parallel    first protrusions arranged in a first direction;-   the second wire grid polarizer comprises multiple parallel second    protrusions arranged in a second direction;-   an area where the first protrusions are located and an area where    the second protrusions are located correspond to the non-lens area,    and the first direction is perpendicular to the second direction.

Optionally, in case where the first polarization layer is locatedbetween the pixel layer and the support layer and the secondpolarization layer is located between the support layer and the lenslayer, the first polarization layer further comprises a first inorganiclayer and a first organic layer, and the second polarization layerfurther comprises a second inorganic layer and a second organic layer;

-   the first organic layer is disposed on a side, close to the support    layer, of the pixel layer, the multiple first protrusions are    disposed on a side, close to the support layer, of the first    inorganic layer, and the first organic layer covers the multiple    first protrusions; and-   the second inorganic layer is disposed on a side, close to the    support layer, of the lens layer, the multiple second protrusions    are disposed on a side, close to the support layer, of the second    organic layer, and the second organic layer is disposed on sides,    close to the support layer, of the multiple second protrusions.

Optionally, in case where the first polarization layer is locatedbetween the pixel layer and the support layer and the secondpolarization layer is located between the support layer and the lenslayer, the first polarization layer further comprises a third organiclayer, and the second polarization layer further comprises a fourthorganic layer;

-   the multiple first protrusions are formed on a side, close to the    pixel layer, of the support layer, and the third organic layer is    disposed on sides, close to the pixel layer, of the multiple first    protrusions; and-   the multiple second protrusions are formed on a side, close to the    lens layer, of the support layer, and the fourth organic layer    covers the multiple second protrusions.

Optionally, in case where the first polarization layer and the secondpolarization layer are both located between the support layer and thelens layer, the first polarization layer further comprise a thirdinorganic layer, and the second polarization layer further comprises afifth organic layer;

-   the multiple first protrusions are formed on a side, close to the    lens layer, of the support layer, and the third inorganic layer    covers the multiple first protrusions; and-   the multiple second protrusions are formed on a side, close to the    lens layer, of the third inorganic layer, and the fifth organic    layer covers the multiple second protrusions.

Optionally, the first polarization layer comprises a first polarizer,and the second polarization layer comprises a second polarizer;

wherein, a transmission axis of the first polarizer is perpendicular toa transmission axis of the second polarizer, the first polarizer and thesecond polarizer each comprise a light-transmitting portion and apolarization portion, areas where the polarization portions are locatedcorrespond to the non-lens area, and areas where the light-transmittingportions are located correspond to the lens area.

Optionally, the display panel further comprises a third polarizerlocated on a side, close to the support layer, of the pixel layer; and

the polarization unit comprises a third polarization layer, and atransmission axis of the third polarization layer is perpendicular to atransmission axis of the third polarizer.

Optionally, the third polarization layer comprises a third wire gridpolarizer, and the third wire grid polarizer comprises multiple parallelthird protrusions arranged in a third direction;

wherein, the transmission axis of the third polarizer is perpendicularto the third direction.

Optionally, the third polarization layer is located on a side, close tothe support layer, of the lens layer.

Optionally, the lens unit further comprises a dimming layer, the dimminglayer is located on a side, away from the support layer, of the lenslayer and covers the lens layer, and a refractive index of the lenses isdifferent from a refractive index of the dimming layer.

Optionally, the refractive index of the dimming layer is greater thanthe refractive index of the lenses.

Optionally, the lenses are micro-lenses.

Optionally, in a direction parallel to the support layer, across-section of the lenses is circular, elliptical, square orrectangular.

Optionally, in case where the display panel is an RGB OLED displaypanel, the pixel layer comprises a luminescent layer; and

the luminescent layer comprises at least one of a red luminescent layer,a green luminescent layer and a blue luminescent layer.

Optionally, in case where the display panel is a WOLED display panel,the pixel layer comprises a color filter layer, and the display panelfurther comprises a luminescent layer; and

the luminescent layer is disposed on a side, away from the supportlayer, of the pixel layer, and is used to emit white light.

On another aspect, provides a displaying device, comprising the abovedisplay panel.

On another aspect, provides a manufacturing method of the above displaypanel, comprising:

-   forming the pixel layer, the support layer, the lens unit and the    cover plate which are stacked in sequence; and-   forming the polarization unit.

The aforesaid description is merely a brief summary of the technicalsolution of the disclosure. To allow those skilled in the art to gain abetter understanding of the technical means of the disclosure so as toimplement the disclosure according to the contents in the specificationand to make the above and other purposes, features and advantages of thedisclosure clearer, specific implementations of the disclosure are givenbelow.

BRIEF DESCRIPTION OF THE DRAWINGS

To more clearly explain the technical solutions of the embodiments ofthe disclosure or related arts, drawings required for describing theembodiments of the disclosure or the related arts will be brieflyintroduced below. Obviously, the drawings in the following descriptiononly illustrate some embodiments of the invention, and those ordinarilyskilled in the art may obtain other drawings according to the followingones without creative labor.

FIG. 1 is a structural diagram of a display panel subjected tointerference according to one embodiment of the disclosure;

FIG. 2 is a principle diagram of a display panel capable of avoidinginterference according to one embodiment of the disclosure;

FIG. 3 is a structural diagram of a display panel according to oneembodiment of the disclosure;

FIG. 4 is a top view of a lens layer and a first wire grid polarizer inFIG. 3 ;

FIG. 5 is a structural diagram of a display panel according to anotherembodiment of the disclosure;

FIG. 6 is a structural diagram of a display panel according to anotherembodiment of the disclosure;

FIG. 7 is a flow diagram for forming a first cover plate structureaccording to one embodiment of the disclosure;

FIG. 8 is a flow diagram for forming a first substrate structureaccording to one embodiment of the disclosure;

FIG. 9 is a flow diagram for forming a second cover plate structureaccording to one embodiment of the disclosure;

FIG. 10 is a structural diagram of a support structure according to oneembodiment of the disclosure;

FIG. 11 is a structural diagram of a second substrate structureaccording to one embodiment of the disclosure;

FIG. 12 is a structural diagram of a display panel according to anotherembodiment of the disclosure; and

FIG. 13 is a flow diagram of a manufacturing method of a display panelaccording to one embodiment of the disclosure.

DETAILED DESCRIPTION

The technical solutions of the embodiments of the disclosure will beclearly and comprehensively described below in conjunction with thedrawings of the embodiments. Obviously, the embodiments in the followingdescription are merely illustrative ones, and are not all possible onesof the disclosure. All other embodiments obtained by those ordinarilyskilled in the art based on the following ones without creative laborshould also fall within the protection scope of the disclosure.

In the embodiments of the disclosure, terms such as “first”, “second”,“third”, “fourth” and “fifth” are used to distinguish identical orsimilar items with basically the same function and effect merely for thepurpose of clearly describing the technical solutions of the embodimentsof the disclosure, and should not be construed as indicating or implyingrelative importance or implicitly indicating the number of technicalfeatures referred to.

In the embodiments of the disclosure, “multiple” refers to two or more,and “at least one” refers to one or more, unless otherwise clearlyspecified.

In the embodiments of the disclosure, terms such as “upper” and “lower”are used to indicate directional or positional relations based on theaccompanying drawings merely for the purpose of facilitating andsimplifying the description of the disclosure, do not indicate or implythat devices or elements referred to must be in a specific direction, orbe configured and operated in a specific direction, and thus should notbe construed as limitations of the disclosure.

Referring to FIG. 1 , a 3D display panel comprises a display luminescentlayer 100, a filter layer 101, a flat layer 102, a lens array, alow-refractive index adhesive layer 104 and cover glass which arestacked in sequence, wherein the lens array comprises multiple sphericallenses 103 arranged in an array, and the filter layer 101 comprises ared filter layer R, a blue filter layer B and a green filter layer G.When the 3D display panel is used for 3D display, light emitted from thefilter layer 101 to an area between the adjacent spherical lenses 103(such as light a in FIG. 1 ) will disturb light radiated to thespherical lenses 103 (such as light b in FIG. 1 ) to cause interference,which greatly reduces the 3D display effect and the watch experience.

In view of this, the embodiments of the disclosure provide a displaypanel which, as shown in FIG. 3 and FIG. 4 , comprises a pixel layer 1,a support layer 2, a lens unit 3 and a cover plate which are stacked insequence, wherein the support layer 2 is located on a light-emittingside of the pixel layer 1.

Referring to FIG. 3 and FIG. 4 , the lens unit 3 comprises a lens layer,wherein the lens layer comprises a lens area and a non-lens area, andthe lens area comprises multiple lenses 31 arranged in an array.

The display panel further comprises a polarization unit disposed on alight path between the pixel layer and the lens layer and configured tofilter out light emitted from the pixel layer to the non-lens area.

As shown in FIG. 3 , the polarization unit may comprise a firstpolarization layer 5 and a second polarization layer 6, wherein thefirst polarization layer 5 is closer to the pixel layer 1 than thesecond polarization layer 6, and a transmission axis of the firstpolarization layer 5 is perpendicular to a transmission axis of thesecond polarization layer 6.

The polarization unit is disposed on the light path between the pixellayer and the lens layer, that is to say, the polarization unit may bedisposed between the pixel layer and the support layer, between thesupport layer and the lens layer, or between the pixel layer and thesupport layer as well as between the support layer and the lens layer.Of course, the polarization unit may also be disposed in other manners,the disclosure has no specific limitation in this aspect, and thearrangement of the polarization unit may be determined according to thespecific structure of the polarization unit.

The lens layer comprises the lens area and the non-lens area. The lensesare disposed in the lens area and may be micro-lenses, and the non-lensarea is an area except for the lens region. The specific range of thenon-lens area depends on the arrangement manner of the multiple lenses.The multiple lenses constitute a non-contact lens array (a gap isreserved between every two adjacent lenses 31, as shown in FIG. 3 ); or,the multiple lenses constitute a contact-type lens array (every twoadjacent lenses are connected). The disclosure has no limitation in thisaspect. The drawings of the embodiments of the disclosure are drawn withthe non-contact lens array as an example.

The disclosure has no limitation to the material of the support layer.Illustratively, the support layer may be made of an organiclight-transmitting material which specifically may be any one ofpolystyrene, polycarbonate, polyethylene, polypropylene, polyvinylchloride, polyethylene terephthalate, polymethyl methacrylate, andacrylic acid, and in this case, the support layer has a planarizationeffect. Or, the support layer may be made of an organiclight-transmitting material which specifically may be optical glass.

The disclosure has no limitation to the shape of the lenses.Illustratively, the lenses may be hemispherical lenses shown in FIG. 3and FIG. 4 , or cylindrical lenses. The cross-section of the lenses in adirection parallel to the support layer may be circular, elliptical,square, rectangular, or the like.

The disclosure has no limitation to the specific material of the lenses.Illustratively, the lenses may be made of an inorganiclight-transmitting material such as quartz glass; or, the lenses may bemade of an organic light-transmitting material such as acrylic resin.The disclosure has no limitation to the manufacturing method of the lenslayer. Illustratively, the lens layer may be manufactured by anano-imprinting process or a thermal reflux process.

To realize better 3D display, the lens unit 3 may further comprise adimming layer 32, as shown in FIG. 3 , wherein the dimming layer 32 islocated on a side, away from the support layer 2, of the lens layer andcovers the lens layer, and the refractive index of the lenses isdifferent from the refractive index of the dimming layer.

The disclosure has no limitation to the type of the display panel.Illustratively, the display panel may be any one of an organic lightemitting diode (OLED) display panel, a Micro LED display panel and aMini LED display panel; wherein, the OLED display panel may be a WOLEDdisplay panel, and pixels of the WOLED display panel emit white light,so a color filter layer needs to be additionally arranged to realizecolor display; or, the OLED display panel may be an RGB OLED displaypanel, pixels of the RGB OLED are able to directly emit light indifferent colors, so a color filter layer does not need to be arrangedanymore. Or, the display panel may be a liquid crystal display (LCD)display panel.

If the display panel is an RGB OLED display panel, the pixel layer maycomprise a luminescent layer. The pixel layer may comprise a redluminescent layer, a green luminescent layer and a blue luminescentlayer. Or, the pixel layer may only comprise a luminescent layer in onecolor. The disclosure has no limitation in this aspect, and the specificconfiguration may be determined as actually needed.

If the display panel is a WOLED display panel or an LCD display panel,the pixel layer may comprise a color filter layer. As shown in FIG. 3 ,the pixel layer 1 may comprise a red filter layer R, a green filterlayer G and a blue filter layer B. Of course, the pixel layer may onlycomprise a filter layer in one color. The disclosure has no limitationin this aspect, and the specific configuration may be determined asactually needed. Furthermore, in case where the display panel is a WOLEDdisplay panel, the display panel may further comprise, as shown in FIG.3 , a luminescent layer, wherein the luminescent layer 7 is disposed ona side, away from the support layer 2, of the pixel layer 1 and is ableto emit white light. In case where the display panel is an LCD displaypanel, the display panel may further comprise a liquid crystal layer, anarray substrate and a backlight module, wherein light emitted by thebacklight module sequentially passes through the array substrate and theliquid crystal layer to be irradiated to the pixel layer. It should benoted that the drawings of the embodiments of the disclosure are drawnin case where the display panel is a WOLED display panel and the pixellayer comprises a red filter layer R, a green filter layer G and a bluefilter layer B.

As shown in FIG. 2 , when the display panel provided by the embodimentsof the disclosure is used for 3D display, the light a (stray light)emitted from the pixel layer 1 to the non-lens area is filter out by thepolarization unit, so that the light b radiated to the lens-area willnot be distributed by the stray light, thus avoiding interference causedby the stray light and improving the 3D display effect and the watchexperience.

Optionally, the polarization unit comprises a first polarization layerand a second polarization layer, wherein the first polarization layer iscloser to the pixel layer than the second polarization layer, and atransmission axis of the first polarization layer is perpendicular to atransmission axis of the second polarization layer.

The disclosure has no limitation to the specific position and structureof the first polarization layer and the second polarization layer.

Because the transmission axis of the first polarization layer isperpendicular to the transmission axis of the second polarization layer,light emitted from the pixel layer to the non-lens area will be blockedby the second polarization layer after passing through the firstpolarization layer, and will not be radiated to the non-lens area, sothat light emitted from the pixel layer to the lens area will not bedistributed, thus avoiding interference and improving the 3D displayeffect and the watch experience.

Optionally, as shown in FIG. 3 and FIG. 5 , the first polarization layer5 is located between the pixel layer 1 and the support layer 2, and thesecond polarization layer 6 is located between the support layer 2 andthe lens layer (not shown in FIG. 3 and FIG. 5 ). In this case, thesupport layer may be made of an organic light-transmitting material oran inorganic luminescent layer, which depends on different manufacturingprocesses.

Optionally, as shown in FIG. 6 , the first polarization layer 5 and thesecond polarization layer 6 are both located between the support layer 2and the lens layer (not shown in FIG. 6 ). In this case, the supportlayer may be made of an inorganic light-transmitting material such asglass, so that the first polarization layer and the second polarizationlayer may be manufactured on a side, close to the lens layer, of thesupport layer. Of course, the support layer may also be made of anorganic light-emitting material, and in this case, to facilitate themanufacturing of the first polarization layer, an inorganic layer may bedisposed between the first polarization layer and the support layer tobe used as anti-etching layer.

Two specific structures of the first polarization layers and the secondpolarization layer are provided below.

1. The first polarization layer comprises a first wire grid polarizer,and the second polarization layer comprises a second wire gridpolarizer; wherein, as shown in FIG. 3 , the first wire grid polarizercomprises multiple parallel first protrusions 51 arranged in a firstdirection; the second wire grid polarizer comprises multiple parallelsecond protrusions 61 arranged in a second direction; an area where thefirst protrusions are located and an area where the second protrusionsare located correspond to the non-lens area, and the first direction isperpendicular to the second direction.

The first wire grid polarizer is a wire grid polarizer (WGP), and themultiple first protrusions form a grid and may be made of metal or metalalloy; and light is able to pass through an area between every twoadjacent first protrusions. The shape of the first protrusions is notlimited. Illustratively, the first protrusions 51 may be linear, asshown in FIG. 4 . The structure of the second wire grid polarizer issimilar to the structure of the first wire grid polarizer, and will nolonger be detailed here.

The first direction is perpendicular to the second direction, so thedirection of the first protrusions is perpendicular to the direction ofthe second protrusions, which ensures that the transmission axis of thefirst polarization layer is perpendicular to the transmission axis ofthe second polarization layer, and thus, light emitted from the pixellayer to the non-lens area will be blocked by the second wire gridpolarizer after passing through the first wire grid polarizer, and willnot be radiated to the non-lens area.

The first direction may be an OA direction shown in FIG. 4 (a long-sidedirection of the display panel), and the second direction may be an OBdirection shown in FIG. 4 (a short-side direction of the display panel);or, the first direction may be the OB direction shown in FIG. 4 (theshort-side direction of the display panel), and the second direction maybe the OA direction shown in FIG. 4 (the long-side direction of thedisplay panel). The disclosure has no limitation in this aspect. FIG. 4is drawn with the OA direction as the first direction and the OBdirection as the second direction. FIG. 4 only illustrates a top view ofthe first wire grid polarizer and the lens layer, but does notillustrate a top view of the second wire grid polarizer, and multiplesecond protrusions in the second wire grid polarizer may be arranged inthe second direction (the OB direction).

It should be noted that the first polarization layer and the secondpolarization layer may comprise other film layers according to differentmanufacturing processes to facilitate the manufacturing of the wire gridpolarizers.

Illustratively, as shown in FIG. 3 , in case where the firstpolarization layer is located between the pixel layer and the supportlayer and the second polarization layer is located between the supportlayer and the lens layer, the first polarization layer 5 may furthercomprise a first inorganic layer 53 and a first organic layer 52,wherein the first inorganic layer 53 is disposed on a side, close to thesupport layer 2, of the pixel layer 1; the multiple first protrusions 51are arranged on a side, close to the support layer 2, of the firstinorganic layer 53; and the first organic layer 52 covers the multiplefirst protrusions 51 to protect the multiple first protrusions 51. Thesecond polarization layer 6 may further comprise a second inorganiclayer 63 and a second organic layer 62, wherein the second inorganiclayer 63 is disposed on a side, close to the support layer 2, of thelens layer; the multiple second protrusions 61 are arranged on a side,close to the support layer 2, of the second inorganic layer 63; and thesecond organic layer 62 is arranged on sides, close to the support layer2, of the multiple second protrusions 61 to protect and support themultiple second protrusions 61. That is, in the structure shown in FIG.3 , the multiple first protrusions 51 may be manufactured on a side,away from the pixel layer 1, of the first inorganic layer 63, and themultiple second protrusions 61 may be manufactured on a side, close tothe support layer 3, of the second organic layer 63. In this structure,the support layer may be made of an organic light-transmitting materialto fulfill a support effect. Of course, the support layer may also bemade of an inorganic light-transmitting material, such as glass.

Of course, as shown in FIG. 5 , the first polarization layer 5 mayfurther comprise a third organic layer 54, wherein the third organiclayer 54 is disposed on sides, close to the pixel layer 1, of themultiple first protrusions 51, and the multiple first protrusions 51 areformed on a side, close to the pixel layer, of the support layer 2. Thesecond polarization layer 6 may further comprise a fourth organic layer64, wherein the fourth organic layer 64 covers the multiple secondprotrusions 61, and the multiple second protrusions 61 are formed in aside, close to the lens layer, of the support layer 2. That is, in thestructure shown in FIG. 5 , the multiple first protrusions 51 and themultiple second protrusions 61 may be manufactured on two opposite sidesof the support layer 2, respectively. In this structure, the supportlayer may be made of an inorganic light-transmitting layer (such asglass) to facilitate the fabrication of the wire grid polarizers andfulfill a good support effect. In addition, the third organic layer andthe fourth organic layer may be replaced with inorganic layer. Toguarantee the protection effect, the third organic layer and the fourthorganic layer are preferred.

Illustratively, as shown in FIG. 6 , in case where the firstpolarization layer and the second polarization layer are both locatedbetween the support layer and the lens layer, the first polarizationlayer 5 may further comprise a third inorganic layer 55 that covers themultiple first protrusions 51, and the second polarization layer 6 mayfurther comprise a fifth organic layer 65 that covers the multiplesecond protrusions 61. That is, in the structure shown in FIG. 6 , themultiple first protrusions 61 are formed on a side, close to the lenslayer, of the support layer 2, and the multiple second protrusions 61are formed on a side, close to the lens layer, of the third inorganiclayer 55. In this structure, the support layer may be made of aninorganic light-transmitting material (such as glass) to facilitate thefabrication of the wire gird polarizers and fulfill a good supporteffect. In addition, the fifth organic layer may be replaced with aninorganic layer; to guarantee the protection effect, the fifth organiclayer is preferred. The third inorganic layer may be replaced with anorganic layer, and in this case, to facilitate the manufacturing of themultiple second protrusions, an inorganic layer may be manufactured onthe third organic layer. To reduce the manufacturing processes andmanufacturing costs, the third inorganic layer is preferred.

It should be noted that the first inorganic layer, the second inorganiclayer and the third inorganic layer may be made of silicon oxide,silicon nitride, or the like, and are preferably made of silicon oxide.The first organic layer, the second organic layer, the third organiclayer, the fourth organic layer and the fifth organic layer may be madeof organic silicone, or the like.

2. The first polarization layer comprises a first polarizer, and thesecond polarization layer comprises a second polarizer; wherein, atransmission axis of the first polarizer is perpendicular to atransmission axis of the second polarizer, the first polarizer and thesecond polarizer each comprise a light-transmitting portion and apolarization portion, areas where the polarization portions are locatedcorrespond to the non-lens area, and areas where the light-transmittingportions are located correspond to the lens area.

The first polarizer may comprise a PVA film that has a polarizationeffect to change natural light into polarized light. Because the PVAfilm is prone to hydrolysis, the first polarizer may further compriseTAC films respectively disposed on two sides of the PAV films to protectthe physical properties of the PVA film. The structure of the secondpolarizer can be understood with reference to the structure of the firstpolarizer and will no longer be detailed here.

To guarantee normal display, the first polarizer and the secondpolarizer each comprise the light-transmitting portion and thepolarization portion, wherein the light-transmitting portions allowlight to pass through and do not have a polarization effect, and thepolarization portions have a polarization effect.

The polarizer has the following characteristics: light parallel to thetransmission axis of the polarizer is able to pass through thepolarizer, and light perpendicular to the transmission axis is unable topass through the polarizer. The transmission axis of the first polarizeris perpendicular to the transmission axis of the second polarizer, sothat light emitted from the pixel layer to the non-lens area will beblocked by the second polarizer after passing through the firstpolarizer, and will not be radiated to the non-lens area.

It should be noted that the polarization unit comprising the firstpolarization layer and the second polarization layer is suitable for acase where light radiated to the polarization unit is non-polarized, andin this case, the display panel may be an OLED display panel.

If light radiated into the polarization units is polarized light(suitable for an LCD display panel), the polarization unit only needs tobe provided with one polarization layer. Optionally, the display panelfurther comprises a third polarizer located on a side, close to thesupport layer, of the pixel layer. The polarization unit comprises athird polarization layer, and a transmission axis of the thirdpolarization layer is perpendicular to a transmission axis of the thirdpolarizer.

The third polarizer is used for display and differs from the firstpolarizer and the second polarizer in that all the area of the thirdpolarizer has a polarization effect.

The transmission axis of the third polarization layer is perpendicularto the transmission axis of the third polarizer, so that light emittedfrom the pixel layer to the non-lens layer will be blocked by the thirdpolarization layer after passing through the third polarizer, and willnot be radiated to the lens area.

Optionally, the third polarization layer comprises a third wire gridpolarizer, wherein the third wire grid polarizer comprises multipleparallel third protrusions arranged in a third direction, and atransmission axis of the third polarizer is perpendicular to the thirddirection.

The structure of the third wire grid polarizer is similar to that of thefirst wire grid polarizer, and will no longer be detailed here.

The transmission axis of the third polarizer is perpendicular to thethird direction, that is to say, the transmission shaft of the thirdpolarizer is perpendicular to the direction of the third protrusions,which ensures that the transmission axis of the third polarization layeris perpendicular to the transmission shaft of the third polarizer, sothat light emitted from the pixel layer to the non-lens area will beblocked by the third wire grid polarizer after passing through the thirdpolarizer, and will not be radiated to the non-lens area.

Optionally, to better block light radiated to the non-lens area, thethird polarization layer is located on a side, close to the supportlayer, of the lens layer.

Optionally, to realize better 3D display, as shown in FIG. 3 , the lensunit further comprises a dimming layer 32, wherein the dimming layer 32is located on a side, away from the support layer, of the lens layer andcovers the lens layer, and the refractive index of the lenses 31 isdifferent from the refractive index of the dimming layer 32.

The refractive index of the lenses is different from the refractiveindex of the dimming layer means that the refractive index of the lensesis greater than the refractive index of the dimming layer or therefractive index of the lenses is smaller than the refractive index ofthe dimming layer. To guarantee better display, the refractive index ofthe lenses is preferably greater than the refractive index of thedimming layer, and in this case, the lenses may be made ofhigh-refractive index silicone, and the dimming layer may be made oflow-refractive index adhesive material.

It should be noted that the dimming layer 32 may be located on a side,close to the support layer 2, of the lens layer (not shown in FIG. 12 ),as shown in FIG. 12 , and in this case, the lenses 31 of the lens layermay protrude towards the support layer 2. In FIG. 12 , the refractiveindex of the dimming layer 32 may be greater than the refractive indexof the lenses; or, the refractive index of the dimming layer 32 may besmaller than the refractive index of the lenses 31. To guarantee betterdisplay, the refractive index of the dimming layer is preferably greaterthan the refractive index of the lenses 31, and in this case, thedimming layer may be made of high-refractive index silicone, and thelenses may be made of low-refractive index adhesive material.

To further improve the display effect, the structure of the dimminglayer in FIG. 3 is preferred.

The embodiments of the disclosure further provide a displaying devicecomprising the display panel. The displaying device may be a displaycomponent such as an OLED displaying device, a Micro LED displayingdevice, a Mini LED displaying device and an LCD displaying device, orany products or units comprising the display component such as atelevision, a digital camera, a mobile phone or a tablet computer.Wherein, the OLED displaying device is an RGB OLED displaying device ora WOLED displaying device. The displaying device has a good 3D displayeffect and good user experience.

The embodiments of the disclosure further provide a manufacturing methodof the display panel. As shown in FIG. 13 , the manufacturing methodcomprises:

-   S01: forming the pixel layer, the support layer, the lens unit and    the cover plate which are stacked in sequence, wherein the support    layer is located on a light-emitting side of the pixel layer; and    the lens unit comprises a lens layer, the lens layer comprises a    lens area and a non-lens area, and the lens area comprises multiple    lenses arranged in an array; and-   S02: forming the polarization unit, wherein the polarization unit is    disposed on a light path between the pixel layer and the lens layer    and is configured to filter out light emitted from the pixel layer    to the non-lens area.

When the display panel manufactured by the method is used for 3Ddisplay, light emitted from the pixel layer to the non-lens area (straylight) is filtered out by the polarization unit, so that light radiatedto the lens area will not be distributed by the stray light, thusavoiding interference caused by the stray light and improving the 3Ddisplay effect and the watch experience. The manufacturing method issimple, easy to implement, and high in operability.

The manufacturing method of the display panel of three differentstructures shown in FIG. 3 , FIG. 5 and FIG. 6 will be described belowwith the display panel being a WOLED display panel and the pixel layercomprising a red filter layer R, a green filter layer G and a bluefilter layer B as an example.

1. As shown in FIG. 3 , the polarization unit of the display panelcomprises a first polarization layer 5 and a second polarization layer6, wherein the first polarization layer 5 is located between the pixellayer 1 and the support layer 2, the second polarization layer 6 islocated between the support layer 2 and the lens layer, the firstpolarization layer 5 comprises a first wire grid polarizer, a firstinorganic layer 53 and a first organic layer 52, and the secondpolarization layer 6 comprises a second wire grid polarizer, a secondinorganic layer 63 and a second organic layer 62.

The manufacturing method of the display panel shown in FIG. 3 comprises:

-   S11: forming a first cover plate structure shown by FIG. d in FIG. 7    , wherein the first cover plate structure comprises the cover plate    4, the lens unit and the second polarization layer 6;-   S12: forming a first substrate structure shown by FIG. c1 in FIG. 8    , wherein the first substrate structure comprises a luminescent    layer 7, the pixel layer 1, the polarization layer 5 and the support    layer 2; and-   S13: aligning and attaching the first cover plate structure formed    in S11 to the first substrate structure formed in S12 to form the    display panel shown in FIG. 3 .

Specifically, the structure formed in S11 may be turned to align andattach the second polarization layer to a side, away from the pixellayer, of the support layer in the first substrate structure with anoptical curing adhesive to form the display panel shown in FIG. 3 .

Optionally, forming the first cover plate structure in S11 comprises:

-   S111: forming the cover plate 4 shown by FIG. a in FIG. 7 ;-   S112: forming a low-refractive index adhesive layer on the cover    plate, and forming multiple grooves by a nano-imprinting technique    to obtain a dimming layer 32 shown by FIG. b in FIG. 7 , wherein the    refractive index of the low-refractive index adhesive layer is about    1.4, and the grooves correspond to the lenses in shape;-   S113: filling in the multiple grooves with high-refractive index    silicone to form a lens layer, comprising multiple lenses 31, shown    by FIG. c in FIG. 7 , wherein the refractive index of the    high-refractive index silicone is greater than 1.5;-   S114: forming the second inorganic layer 63 shown by FIG. d in FIG.    7 ;-   S115: forming a metallic aluminum film on the second inorganic    layer, and patterning the metallic aluminum film to form the second    wire grid polarizer, wherein the second wire grid polarizer    comprises multiple parallel metal wires for forming second    protrusions 61 shown by FIG. d in FIG. 7 , and an area where the    multiple metal wires are located corresponds to the non-lens area;    and-   S116: forming the second organic layer 62 shown by FIG. d in FIG. 7    on the second wire grid polarizer, wherein the second organic layer    covers the second wire grid polarizer and the second inorganic    layer;-   Wherein, the second inorganic layer, the second wire grid polarizer    and the second organic layer constitute the second polarization    layer.

By performing S111-S116, the first cover plate structure provided withthe second wire grid polarizer and the lens unit may be formed.

Optionally, forming the first substrate structure in S12 comprises:

-   S121: sequentially forming the luminescent layer 7 and the pixel    layer 1 shown by FIG. a1 in FIG. 8 , wherein the pixel layer 1    comprises a red filter layer R, a green filter layer G and a blue    filter layer B;-   S122: forming the first inorganic layer 53 shown by FIG. b1 in FIG.    8 on the pixel layer;-   S123: forming a metallic aluminum film on the first inorganic layer,    and patterning the metallic aluminum film to form the first wire    grid polarizer, wherein the first wire grid polarizer comprises    multiple parallel metal wires for forming first protrusions 51 shown    by FIG. b1 in FIG. 8 , and an area where the multiple metal wires    are located corresponds to the non-lens area;-   S124: forming the first organic layer 52, covering the first wire    grid polarizer, shown by FIG. c1 in FIG. 8 , wherein the first    inorganic layer, the first wire grid polarizer and the first organic    layer constitute the first polarization layer; and-   S125: forming the support layer 2 shown by FIG. c1 in FIG. 8 on the    first organic layer, wherein the support layer may be made of resin.

By performing S121-S125, the first substrate structure provided with thefirst wire grid polarizer may be formed.

2. As shown in FIG. 5 , the polarization unit of the display panelcomprises a first polarization layer 5 and a second polarization layer6, wherein the first polarization layer 5 is located between the pixellayer 1 and the support layer 2, the second polarization layer 5 islocated between the support layer 2 and the lens layer, the firstpolarization layer 5 comprises a first wire grid polarizer and a thirdorganic layer 54, and the second polarization layer 6 comprises a secondwire grid polarizer and a fourth organic layer 64.

The manufacturing method of the display panel shown in FIG. 5 comprises:

-   S21: forming a second cover plate structure shown in FIG. 9 ,    wherein the second cover plate structure comprises the cover plate 4    and the lens unit;-   S22: forming a support structure shown in FIG. 10 , wherein the    support structure comprises the support layer 2, and the first    polarization layer 5 and the second polarization layer located on    two sides of the support layer 2;-   S23: forming a second substrate structure shown in FIG. 11 , wherein    the second substrate structure comprises a luminescent layer 7 and    the pixel layer 1; and-   S24: aligning and attaching the second cover plate structure formed    in S22 to the second substrate structure formed in S23 to form the    display panel shown in FIG. 5 .

Specifically, the second cover plate structure and the second substratestructure may be aligned and attached to the support structure with anoptical curing adhesive, wherein the lens layer is aligned and attachedto the second polarization layer, and the first polarization layer isaligned and attached to the pixel layer.

Optionally, forming the second cover plate structure in S21 comprises:

-   S211: forming the cover plate 4 shown by FIG. a2 in FIG. 9 ; and-   S212: forming the lens unit on the cover plate, wherein as shown by    FIG. b2 and FIG. b3 in FIG. 9 , the lens unit comprises a dimming    layer 32 and a lens layer, and the lens layer comprises multiple    lenses 31.

Please refer to S112 and S113 for the specific method for forming thedimming layer and the lens layer, and unnecessary details will no longerbe given here.

Optionally, forming the support structure in S22 comprises:

-   S221: forming the support layer 2 shown in FIG. 11 , wherein the    support layer may be made of glass;-   S222: forming a metallic aluminum film on one side of the support    layer, and patterning the metallic aluminum film to form the first    wire grid polarizer, wherein the first wire grid polarizer comprises    multiple parallel metal wires for forming first protrusions shown in    FIG. 11 , and an area where the multiple metal wires are located    corresponds to the non-lens area;-   S223: forming the third organic layer 54 shown in FIG. 11 , wherein    the third organic layer covers the first wire grid polarizer;-   S224: forming a metallic aluminum film on the other side of the    support layer, and patterning the metallic aluminum film to form the    second wire grid polarizer, wherein the second wire grid polarizer    comprises multiple parallel metal wires for forming second    protrusions shown in FIG. 11 , and an area where the multiple metal    wires are located corresponds to the non-lens area; and-   S225: forming the fourth organic layer 64 shown in FIG. 11 , wherein    the fourth organic layer covers the second wire grid polarizer.

Optionally, forming the second substrate structure in S23 comprises:

-   S231: forming the luminescent layer 7 shown in FIG. 11 ; and-   S232: forming the pixel layer 1 shown in FIG. 11 , wherein the pixel    layer 1 comprises a red filter layer R, a green filter layer G and a    blue filter layer B.

3. As shown in FIG. 6 , the polarization unit of the display panelcomprises a first polarization layer 5 and a second polarization layer6, wherein the first polarization layer 5 and the second polarizationlayer 6 are both located between the support layer 2 and the lens layer,the first polarization layer 5 comprises a first wire grid polarizer anda third inorganic layer, and the second polarization layer 6 comprises asecond wire grid polarizer and a fifth organic layer 65.

The manufacturing method of the display panel shown in FIG. 6 comprises:

-   S31: forming a third substrate structure, wherein the third    substrate structure comprises a luminescent layer, the pixel layer    and the support layer;-   S32: forming the polarization unit on the third substrate structure,    wherein the polarization unit comprises the first polarization layer    and the second polarization layer; and-   S33: sequentially forming the lens unit and the cover plate on the    polarization unit.

Optionally, forming the third substrate structure in S31 comprises:

-   S311: sequentially forming the luminescent layer and the pixel    layer, wherein the pixel layer comprises a red filter layer, a green    filter layer and a blue filter layer; and-   S312: forming the support layer on the pixel layer.

Optionally, forming the polarization unit on the third substratestructure in S32 comprises:

-   S321: forming a metallic aluminum film on the support layer, and    patterning the metallic aluminum film to form the first wire grid    polarizer, wherein the first wire grid polarizer comprises multiple    parallel metal wires, and an area where the multiple metal wires are    located corresponds to the non-lens area;-   S322: forming the third inorganic layer, wherein the third inorganic    layer covers the first grid polarizer, and the third inorganic layer    and the first wire grid polarizer constitute the first polarization    layer;-   S323: forming a metallic aluminum film on the third inorganic layer,    and patterning the metallic aluminum film to form the second wire    grid polarizer, wherein the second wire grid polarizer comprises    multiple parallel metal wires, and an area where the multiple metal    wires are located corresponds to the non-lens area; and-   S324: forming the fifth organic layer, wherein the fifth organic    layer covers the second wire grid polarizer.

The second wire grid polarizer and the fifth organic layer constitutethe second polarization layer.

Optionally, sequentially forming the lens unit and the cover plate onthe polarization unit comprises:

-   S331: forming the lens layer on the fifth organic layer;-   Specifically, the lens layer is formed by a thermal reflux process    and may be made of high-refractive index silicone, and the    refractive index of the high-refractive silicone is greater than    1.5;-   S332: forming the dimming layer covering the lens layer;

The dimming layer may be made of low-refractive index adhesive material,and the refractive index of the low-refractive index adhesive layer isabout 1.4.

S333: forming the cover plate on the dimming layer.

The cover plate may be made of glass.

The aforesaid description merely illustrates the specificimplementations of the disclosure, and the protection scope of thedisclosure is not limited to the above description. Any variations orsubstitutions easily obtained by any skilled in the art within thetechnical scope of the disclosure should also fall within the protectionscope of the disclosure. Thus, the protection scope of the disclosureshould be subject to the protection scope of the claims.

1. A display panel, comprising a pixel layer, a support layer, a lensunit and a cover plate which are stacked in sequence, wherein: thesupport layer is located on a light-emitting side of the pixel layer;the lens unit comprises a lens layer, the lens layer comprises a lensarea and a non-lens area, and the lens area comprises multiple lensesarranged in an array; the display panel further comprises a polarizationunit disposed on a light path between the pixel layer and the lens layerand configured to filter out light emitted from the pixel layer to thenon-lens area; the polarization unit comprises a first polarizationlayer and a second polarization layer, wherein the first polarizationlayer is closer to the pixel layer than the second polarization layer,and a transmission axis of the first polarization layer is perpendicularto a transmission axis of the second polarization layer; the firstpolarization layer comprises a first wire grid polarizer, and the secondpolarization layer comprises a second wire grid polarizer; wherein, thefirst wire grid polarizer comprises multiple parallel first protrusionsarranged in a first direction; the second wire grid polarizer comprisesmultiple parallel second protrusions arranged in a second direction; andan area where the first protrusions are located and an area where thesecond protrusions are located correspond to the non-lens area, and thefirst direction is perpendicular to the second direction.
 2. The displaypanel according to claim 1, wherein the first polarization layer furthercomprises a first inorganic layer and a first organic layer, and thesecond polarization layer further comprises a second inorganic layer anda second organic layer; the first organic layer is disposed on a side,closest to the support layer, of the pixel layer, the multiple firstprotrusions are disposed on a side, closest to the support layer, of thefirst inorganic layer, and the first organic layer covers the multiplefirst protrusions; and the second inorganic layer is disposed on a side,closest to the support layer, of the lens layer, the multiple secondprotrusions are disposed on a side, closest to the support layer, of thesecond organic layer, and the second organic layer is disposed on sides,closest to the support layer, of the multiple second protrusions.
 3. Thedisplay panel according to claim 1, wherein the first polarization layerfurther comprises a third organic layer, and the second polarizationlayer further comprises a fourth organic layer; the multiple firstprotrusions are formed on a side, closest to the pixel layer, of thesupport layer, and the third organic layer is disposed on sides, closestto the pixel layer, of the multiple first protrusions; and the multiplesecond protrusions are formed on a side, closest to the lens layer, ofthe support layer, and the fourth organic layer covers the multiplesecond protrusions.
 4. The display panel according to claim 1, whereinthe first polarization layer further comprises a third inorganic layer,and the second polarization layer further comprises a fifth organiclayer; the multiple parallel first protrusions are formed on a side,closest to the lens layer, of the support layer, and the third inorganiclayer covers the multiple parallel first protrusions; and the multipleparallel second protrusions are formed on a side, closest to the lenslayer, of the third inorganic layer, and the fifth organic layer coversthe multiple parallel second protrusions.
 5. The display panel accordingto claim 1, wherein the lens unit further comprises a dimming layer, thedimming layer is located on a side, farthest from the support layer, ofthe lens layer and covers the lens layer, and a refractive index of thelenses is different from a refractive index of the dimming layer.
 6. Thedisplay panel according to claim 5, wherein the refractive index of thedimming layer is greater than the refractive index of the lenses.
 7. Thedisplay panel according to claim 1, wherein the lenses are micro-lenses.8. The display panel according to claim 1, wherein in a directionparallel to the support layer, a cross-section of the lenses iscircular, elliptical, square or rectangular.
 9. A displaying device,comprising the display panel according to claim
 1. 10. A manufacturingmethod of the display panel according to claim 1, comprising: formingthe pixel layer, the support layer, the lens unit and the cover platewhich are stacked in sequence; and forming the polarization unit.
 11. Adisplay panel, comprising a pixel layer, a support layer, a lens unitand a cover plate which are stacked in sequence, wherein: the supportlayer is located on a light-emitting side of the pixel layer; the lensunit comprises a lens layer, the lens layer comprises a lens area and anon-lens area, and the lens area comprises multiple lenses arranged inan array; the display panel further comprises a polarization unitdisposed on a light path between the pixel layer and the lens layer andconfigured to filter out light emitted from the pixel layer to thenon-lens area; the polarization unit comprises a first polarizationlayer and a second polarization layer, wherein the first polarizationlayer is closer to the pixel layer than the second polarization layer,and a transmission axis of the first polarization layer is perpendicularto a transmission axis of the second polarization layer; the firstpolarization layer comprises a first polarizer, and the secondpolarization layer comprises a second polarizer; wherein, a transmissionaxis of the first polarizer is perpendicular to a transmission axis ofthe second polarizer, the first polarizer and the second polarizer eachcomprise a light-transmitting portion and a polarization portion, areaswhere the polarization portions are located correspond to the non-lensarea, and areas where the light-transmitting portions are locatedcorrespond to the lens area.
 12. The display panel according to claim11, wherein the lens unit further comprises a dimming layer, the dimminglayer is located on a side, farthest from the support layer, of the lenslayer and covers the lens layer, and a refractive index of the lenses isdifferent from a refractive index of the dimming layer.
 13. The displaypanel according to claim 12, wherein the refractive index of the dimminglayer is greater than the refractive index of the lenses.
 14. Thedisplay panel according to claim 11, wherein the lenses aremicro-lenses.
 15. The display panel according to claim 11, wherein in adirection parallel to the support layer, a cross-section of the lensesis circular, elliptical, square or rectangular.
 16. A display panel,comprising a pixel layer, a support layer, a lens unit and a cover platewhich are stacked in sequence, wherein: the support layer is located ona light-emitting side of the pixel layer; the lens unit comprises a lenslayer, the lens layer comprises a lens area and a non-lens area, and thelens area comprises multiple lenses arranged in an array; the displaypanel further comprises a polarization unit disposed on a light pathbetween the pixel layer and the lens layer and configured to filter outlight emitted from the pixel layer to the non-lens area; the displaypanel further comprises a third polarizer located on a side, closest tothe support layer, of the pixel layer; and the polarization unitcomprises a third polarization layer, and a transmission axis of thethird polarization layer is perpendicular to a transmission axis of thethird polarizer.
 17. The display panel according to claim 16, whereinthe third polarization layer comprises a third wire grid polarizer, andthe third wire grid polarizer comprises multiple parallel thirdprotrusions arranged in a third direction; wherein, the transmissionaxis of the third polarizer is perpendicular to the third direction. 18.The display panel according to claim 16, wherein the third polarizationlayer is located on a side, closest to the support layer, of the lenslayer.
 19. The display panel according to claim 16, wherein the lensunit further comprises a dimming layer, the dimming layer is located ona side, farthest from the support layer, of the lens layer and coversthe lens layer, and a refractive index of the lenses is different from arefractive index of the dimming layer.
 20. The display panel accordingto claim 19, wherein the refractive index of the dimming layer isgreater than the refractive index of the lenses.